STS111-383-009

Astronauts Kenneth D. Cockrell (left) and Paul S. Lockhart, STS-111 mission commander and pilot, respectively, participate in one of the STS-111 detailed test objectives (DTO), this one having to do with the biotechnology water treatment system. The purpose of DTO 694 is to produce ultra-pure water from the shuttles fuel cell water. This water, when processed, can replace manifested ultra-pure water supplies, and thus significantly decrease the mass and volume required to support biotechnology payloads. This is the first flight for this DTO.